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Attachment 2 <br /> Summary Of Performance Estimates <br /> Pipeline Release Detection Method <br /> Hourly Test <br /> First Test Of A Multiple-Test Sequence <br /> Complete this page only if the method being evaluated requires , as part of its test procedures , more than <br /> one complete test to determine whether the pipeline is leaking. Method performance based on the first <br /> test alone must be reported on this form . Complete the first table . The last three tables present the <br /> performance of the method for different combinations of thresholds , probabilities of false alarm , and <br /> probabilities of detection . They are useful for comparing the performance of this method to that of other <br /> methods . However, completion of the last three tables is optional . <br /> Performance Of The Pipeline Release Detection Method As Evaluated <br /> Description Leak Rate P(d) P(fa) Threshold <br /> (gal r) al/hr <br /> Evaluated Method 3 . 0 100% 0% L8 <br /> EPA Standard 3 . 0 0 . 95 0 .05 N/A <br /> P(fa) As A Function Of Threshold <br /> Threshold P(fa) <br /> al/hr <br /> 0 . 10 <br /> 0 . 075 <br /> 0 . 05 <br /> 0 . 05 <br /> P(d) As A Function Of Threshold For A Leak Rate Of 3 . 0 gal/hr <br /> Threshold P(d) <br /> al/hr <br /> 0 .95 <br /> 0 . 90 <br /> 0 . 80 <br /> 0 . 50 <br /> Smallest Leak Rate That Can Be Detected With The Specified P(d) and P(fa) <br /> Leak Rate P(d) P(fa) <br /> al/hr <br /> 0 .95 0 . 10 <br /> 0 .95 0 .075 <br /> 0 .95 0 .05 <br /> 0 .90 0 .05 <br /> 0 . 80 0 .05 <br /> 0 . 50 0 .05 <br /> Pipeline Release Detection System Page 10 <br />